Create a single backtrace library.
This library will be used to abstract away getting backtrace
data from how it is implemented. This is the first step to
replacing libcorkscrew with libunwind.
Bug: 8410085
Change-Id: Ie8f159e96a055d378e1ddc72d40239fba4cf52b7
diff --git a/libbacktrace/Android.mk b/libbacktrace/Android.mk
new file mode 100644
index 0000000..f7b084d
--- /dev/null
+++ b/libbacktrace/Android.mk
@@ -0,0 +1,176 @@
+LOCAL_PATH:= $(call my-dir)
+
+#----------------------------------------------------------------------------
+# The libbacktrace library using libunwind
+#----------------------------------------------------------------------------
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+ unwind.c \
+ unwind_remote.c \
+ unwind_local.c \
+ common.c \
+ demangle.c \
+ map_info.c \
+
+LOCAL_CFLAGS := \
+ -Wall \
+ -Wno-unused-parameter \
+ -Werror \
+ -std=gnu99 \
+
+LOCAL_MODULE := libbacktrace
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_SHARED_LIBRARIES := \
+ liblog \
+ libunwind \
+ libunwind-ptrace \
+ libgccdemangle \
+
+LOCAL_C_INCLUDES := \
+ external/libunwind/include \
+
+# The libunwind code is not in the tree yet, so don't build this library yet.
+#include $(BUILD_SHARED_LIBRARY)
+
+#----------------------------------------------------------------------------
+# The libbacktrace library using libcorkscrew
+#----------------------------------------------------------------------------
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+ corkscrew.c \
+ common.c \
+ demangle.c \
+ map_info.c \
+
+LOCAL_CFLAGS := \
+ -Wall \
+ -Wno-unused-parameter \
+ -Werror \
+ -std=gnu99 \
+
+LOCAL_MODULE := libbacktrace
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_SHARED_LIBRARIES := \
+ libcorkscrew \
+ libdl \
+ libgccdemangle \
+ liblog \
+
+include $(BUILD_SHARED_LIBRARY)
+
+#----------------------------------------------------------------------------
+# The host libbacktrace library using libcorkscrew
+#----------------------------------------------------------------------------
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES += \
+ corkscrew.c \
+ common.c \
+ demangle.c \
+ map_info.c \
+
+LOCAL_CFLAGS += \
+ -Wall \
+ -Wno-unused-parameter \
+ -Werror \
+ -std=gnu99 \
+
+LOCAL_SHARED_LIBRARIES := \
+ liblog \
+ libcorkscrew \
+ libgccdemangle \
+ liblog \
+
+LOCAL_LDLIBS += \
+ -ldl \
+ -lrt \
+
+LOCAL_MODULE := libbacktrace
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_HOST_SHARED_LIBRARY)
+
+#----------------------------------------------------------------------------
+# libbacktrace test library, all optimizations turned off
+#----------------------------------------------------------------------------
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := libbacktrace_test
+LOCAL_MODULE_FLAGS := debug
+
+LOCAL_SRC_FILES := \
+ backtrace_testlib.c
+
+LOCAL_CFLAGS += \
+ -std=gnu99 \
+ -O0 \
+
+include $(BUILD_SHARED_LIBRARY)
+
+#----------------------------------------------------------------------------
+# libbacktrace test executable
+#----------------------------------------------------------------------------
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := backtrace_test
+LOCAL_MODULE_FLAGS := debug
+
+LOCAL_SRC_FILES := \
+ backtrace_test.c \
+
+LOCAL_CFLAGS += \
+ -std=gnu99 \
+
+LOCAL_SHARED_LIBRARIES := \
+ libbacktrace_test \
+ libbacktrace \
+
+include $(BUILD_EXECUTABLE)
+
+#----------------------------------------------------------------------------
+# Only linux-x86 host versions of libbacktrace supported.
+#----------------------------------------------------------------------------
+ifeq ($(HOST_OS)-$(HOST_ARCH),linux-x86)
+
+#----------------------------------------------------------------------------
+# libbacktrace host test library, all optimizations turned off
+#----------------------------------------------------------------------------
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := libbacktrace_test
+LOCAL_MODULE_FLAGS := debug
+
+LOCAL_SRC_FILES := \
+ backtrace_testlib.c
+
+LOCAL_CFLAGS += \
+ -std=gnu99 \
+ -O0 \
+
+include $(BUILD_HOST_SHARED_LIBRARY)
+
+#----------------------------------------------------------------------------
+# libbacktrace host test executable
+#----------------------------------------------------------------------------
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := backtrace_test
+LOCAL_MODULE_FLAGS := debug
+
+LOCAL_SRC_FILES := \
+ backtrace_test.c \
+
+LOCAL_CFLAGS += \
+ -std=gnu99 \
+
+LOCAL_SHARED_LIBRARIES := \
+ libbacktrace_test \
+ libbacktrace \
+
+include $(BUILD_HOST_EXECUTABLE)
+
+endif # HOST_OS-HOST_ARCH == linux-x86